Display device using semiconductor light-emitting diodes, and manufacturing method therefor
a technology of light-emitting diodes and display devices, which is applied in the direction of semiconductor devices, electrical appliances, energy saving control techniques, etc., can solve the problems of not being able to meet the needs of the user, and not being able to achieve the effect of reducing the cost of production
Active Publication Date: 2018-05-17
LG ELECTRONICS INC
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Benefits of technology
The present invention aims to improve the luminance of a display device by using a non-light-emitting region to control current distribution on a light-emitting surface of a semiconductor light-emitting diode. This helps to efficiently disperse the light and reduce light loss around the wiring electrode, which results in brighter display. Additionally, the non-light-emitting region can be easily implemented using existing methods such as dielectric or plasma, making it a simple and effective solution for improving display brightness.
Problems solved by technology
However, there exist problems such as not-so-fast response time, difficult implementation of flexibility in case of LCDs, and there exist drawbacks such as short life span, not-so-good yield as well as low flexibility in case of AMOLEDs.
In particular, when a vertically-structured semiconductor light-emitting diode having a vertical structure is used at a higher resolution, a portion covered by electrode wiring may be formed on a light-emitting surface thereof, thereby resulting in optical loss.
Method used
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[0036]Hereinafter, the embodiments disclosed herein will be described in detail with reference to the accompanying drawings, and the same or similar elements are designated with the same numeral references regardless of the numerals in the drawings and their redundant description will be omitted. A suffix “module” and “unit” used for constituent elements disclosed in the following description is merely intended for easy description of the specification, and the suffix itself does not give any special meaning or function. In describing the present disclosure, if a detailed explanation for a related known function or construction is considered to unnecessarily divert the gist of the present disclosure, such explanation has been omitted but would be understood by those skilled in the art. Also, it should be noted that the accompanying drawings are merely illustrated to easily explain the concept of the invention, and therefore, they should not be construed to limit the technological co...
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The present invention relates to a display device and, particularly, to a display device using semiconductor light-emitting diodes. In the display device according to the present invention, at least one of the semiconductor light-emitting diodes comprises: a first conductive electrode and a second conductive electrode; a first conductive semiconductor layer having the first conductive electrode arranged thereon; a second conductive semiconductor layer overlapping with the first conductive semiconductor layer in a vertical direction, and having the second conductive electrode arranged thereon; and an active layer arranged between the first conductive semiconductor layer and the second conductive semiconductor layer, wherein a connecting unit electrically connected to the first conductive electrode is formed on one surface of the first conductive semiconductor layer, and the connecting unit is arranged so as to lean to one side on the basis of the second conductive electrode along the horizontal direction.
Description
BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present disclosure relates to a display device and a manufacturing method thereof, and more particularly, to a flexible display device using a semiconductor light-emitting diode.2. Description of the Related Art[0002]In recent years, display devices having excellent characteristics such as low profile, flexibility and the like have been developed in the display technical field. On the contrary, currently commercialized main displays are represented by liquid crystal displays (LCDs) and active matrix organic light-emitting diodes (AMOLEDs).[0003]However, there exist problems such as not-so-fast response time, difficult implementation of flexibility in case of LCDs, and there exist drawbacks such as short life span, not-so-good yield as well as low flexibility in case of AMOLEDs.[0004]On the other hand, light-emitting diodes (LEDs) are well known light-emitting devices for converting an electrical current to light, and have...
Claims
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IPC IPC(8): H01L27/15H01L33/62H01L33/36H01L33/00
CPCH01L27/156H01L33/62H01L33/36H01L33/005H01L25/0753H01L33/385H01L2933/0016Y02B20/40
Inventor LEE, EUNAH
Owner LG ELECTRONICS INC